I've learned over time doing prop balances that most mechanical tachometers read low at the high end. The Dynavibe reads out optical RPM and there have been quite a few plane owners surprised to find their engines are turning faster than their tachs have been reporting.
Mike StirewaltKSEE
-- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
